//------------------------------------------------------------------------------
//  <copyright file="LockingControllerMessageHandler.cpp" company="Microsoft Corporation">
// The MIT License (MIT)
// 
// Copyright (c) 2014, Microsoft Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//  </copyright>
//------------------------------------------------------------------------------

#include "stdafx.h"
#include "LockingControllerClientMessageHandler.h"

/// <summary>
/// A version of ControllerClientMessageHandler that uses a critical section in 
/// ProcessMessage to allow calling from multiple threads.
/// </summary>
LockingControllerClientMessageHandler::LockingControllerClientMessageHandler(SharedBufferParameters *pSbParams) :
	ControllerClientMessageHandler(pSbParams)
{
	if(!InitializeCriticalSectionAndSpinCount(&(this->processMessageCriticalSection), 0x00004000))
	{
		throw "Could not initialize critical section";
	}
}

/// <summary> dtor </summary>
LockingControllerClientMessageHandler::~LockingControllerClientMessageHandler()
{
	DeleteCriticalSection(&(this->processMessageCriticalSection));
}

/// <summary>
/// Process a single message from a client connection.
/// Response is placed at location indicated by <c>response</c>.  <c>Response</c> must
/// be pre-allocated.
/// <param name="pMessage"> Pointer to message to be processed. </param>
/// <param name="pResponse"> Location to place response.  Must be allocated by caller. </param>
void LockingControllerClientMessageHandler::ProcessMessage(MessageDescription *pMessage, MessageDescription *pResponse)
{
	EnterCriticalSection(&(this->processMessageCriticalSection));

	ControllerClientMessageHandler::ProcessMessage(pMessage, pResponse);

	LeaveCriticalSection(&(this->processMessageCriticalSection));
}
	
